{"id":8218,"date":"2021-03-31T03:13:31","date_gmt":"2021-03-31T03:13:31","guid":{"rendered":"http:\/\/www.alalloycasting.com\/?p=8218"},"modified":"2021-03-31T03:13:31","modified_gmt":"2021-03-31T03:13:31","slug":"degassing-method-of-molten-aluminum","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/pt\/degassing-method-of-molten-aluminum\/","title":{"rendered":"M\u00e9todo de desgaseifica\u00e7\u00e3o do alum\u00ednio fundido"},"content":{"rendered":"<p>O m\u00e9todo de flota\u00e7\u00e3o \u00e9, atualmente, o m\u00e9todo de desgaseifica\u00e7\u00e3o do alum\u00ednio fundido mais amplamente utilizado. O princ\u00edpio consiste em introduzir um g\u00e1s inerte ou um g\u00e1s ativo insol\u00favel no alum\u00ednio fundido, ou adicionar um sal de cloro (cloreto) para que reaja com o alum\u00ednio fundido e gere um g\u00e1s, o que produz um grande n\u00famero de bolhas que escapam do alum\u00ednio fundido.<\/p>\n<p>Como a press\u00e3o parcial do hidrog\u00eanio na bolha \u00e9 PH=0, o hidrog\u00eanio dissolvido no alum\u00ednio l\u00edquido continuar\u00e1 a entrar na bolha, de acordo com o princ\u00edpio da cin\u00e9tica de remo\u00e7\u00e3o de hidrog\u00eanio. Depois que as bolhas sobem \u00e0 superf\u00edcie, o hidrog\u00eanio contido nelas se dissipa na atmosfera. Portanto, a gera\u00e7\u00e3o cont\u00ednua de bolhas permite a remo\u00e7\u00e3o cont\u00ednua do hidrog\u00eanio dissolvido no alum\u00ednio l\u00edquido.<\/p>\n<p>Os \u00e1tomos de hidrog\u00eanio dissolvidos no alum\u00ednio fundido migram para a superf\u00edcie das bolhas de purifica\u00e7\u00e3o, s\u00e3o adsorvidos na superf\u00edcie dessas bolhas, formam hidretos nas bolhas de hidrog\u00eanio e, por fim, escapam do processo cin\u00e9tico do alum\u00ednio fundido \u00e0 medida que as bolhas sobem, completando assim a desgaseifica\u00e7\u00e3o e a purifica\u00e7\u00e3o do alum\u00ednio fundido.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-8220\" src=\"http:\/\/alalloycasting.com\/wp-content\/uploads\/2021\/03\/Degassing-Method-for-Molten-Aluminum.jpg\" alt=\"\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Degassing-Method-for-Molten-Aluminum.jpg 500w, https:\/\/www.alalloycasting.com\/wp-content\/uploads\/2021\/03\/Degassing-Method-for-Molten-Aluminum-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>AdTech <a href=\"http:\/\/www.alalloycasting.com\/pt\/degassing-equipment\/\">equipamento de desgaseifica\u00e7\u00e3o<\/a> Adota o m\u00e9todo de desgaseifica\u00e7\u00e3o por flutua\u00e7\u00e3o do alum\u00ednio fundido, n\u00e3o contamina o alum\u00ednio l\u00edquido e possui longa vida \u00fatil. Possui propriedade antiaderente ao alum\u00ednio, e o alum\u00ednio l\u00edquido flui atrav\u00e9s do material antiaderente, o que facilita a limpeza. Boa resist\u00eancia superficial, resist\u00eancia \u00e0 eros\u00e3o pelo alum\u00ednio l\u00edquido, \u00e0 corros\u00e3o, sem absor\u00e7\u00e3o de umidade, sem rachaduras e sem aera\u00e7\u00e3o do alum\u00ednio l\u00edquido. A caixa de desgaseifica\u00e7\u00e3o possui um design vedado para evitar a polui\u00e7\u00e3o secund\u00e1ria causada pela entrada de ar externo.<\/p>\n<p>O equipamento de desgaseifica\u00e7\u00e3o apresenta boa resist\u00eancia ao choque t\u00e9rmico e ao resfriamento e aquecimento r\u00e1pidos. Seu coeficiente de expans\u00e3o t\u00e9rmica \u00e9 baixo, podendo ser utilizado continuamente \u00e0 temperatura de opera\u00e7\u00e3o para manter uma apar\u00eancia est\u00e1vel, sem deforma\u00e7\u00f5es. N\u00e3o ocorrem deforma\u00e7\u00f5es nem rachaduras a uma temperatura de cozimento cont\u00ednua de 1.050 \u00b0C.<\/p>","protected":false},"excerpt":{"rendered":"<p>The floatation method is currently the most widely used degassing method of molten aluminum. The principle is to pass an inert gas or an active&hellip;<\/p>","protected":false},"author":1,"featured_media":8219,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-8218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Degassing Method of Molten Aluminum,Floatation Degassing<\/title>\n<meta name=\"description\" content=\"AdTech degassing equipment adopts the floatation degassing method of molten aluminum, does not pollute the aluminum liquid.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alalloycasting.com\/pt\/degassing-method-of-molten-aluminum\/\" 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